OFDM Relay Cognitive Radio Multiple Antennas Synchronization Resource Allocation Channel Estimation Full duplex CDMA Spectrum Sharing Spectrum Sensing Interference Cancellation Stochastic Geometry Bi-Directional Neural Networks Feedback Energy Harvesting Heterogeneous Networks Equalizer FBMC Femtocell HetNet Cross-link interference Dynamic TDD relay networks Device-to-Device (D2D) Equalization MIMO in-band full-duplex system Reliability C-V2V 5G channel capacity SC-FDMA Cell-free Handoff Full-duplex non-orthogonal multiple access Spectral efficiency D-TDD Channel estimation error Cell Search CLI mode selection Ultra-dense small cell massive connectivity interference suppression GFDM LTE-TDD LTE-based V2V TVWS SINR mismatch problem Idle cells NOMA Ultra-dense small cell networks Duplex Ultra Low Power interference interference management Vehicle-to-vehicle communication non-orthogonal multiple access (NOMA) overloading and 5G networks. packet delay mMIMO 5G mobile communication body area networks health care User grouping Multi-user Receiver estimated position overlapping UFMC RSRP weighting QR Factorization intersymbol interference WVAN frame structure Metaheuristics resource block management antenna arrays CFO timing misalignment Empty cell System level simulation spectrum partitioning self interference cancellation User association Timing and frequency offset On/off algorithm Outdated channel estimation Short burst transmission mMTC ultra-dense small cell network inter user interference QAM SCMA MPA detector Power control End-to-end delay dynamic HetNet Zigbee